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Q.

If a resonance tube is sounded with a tuning fork of frequency 256 Hz, resonance occurs at 35 cm and 105 cm. The velocity of sound is about ---------- m/sec.

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answer is 358.

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Detailed Solution

v=2n(ℓ2−ℓ1)

v = 2(256)(1.05 - 0.35) v = 358.4 m/sec

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